# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1995, 1997, 1998, 1999, 2002, 2003
+# Free Software Foundation, Inc.
# Contributed by Dave Love (d.love@dl.ac.uk).
#
#This file is part of GNU Fortran.
#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.
+AC_PREREQ(2.13)
AC_INIT(libF77/Version.c)
-AC_REVISION(1.10)
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.
+ORIGINAL_LD_FOR_MULTILIBS=$LD
-dnl AC_C_CROSS
-dnl Gives misleading `(cached)' message from the check.
-if test "$CROSS";then
- if test "$CC_FOR_TARGET"; then
- CC="$CC_FOR_TARGET"
- else
- CC="../../xgcc -B../../xgcc/"
- fi
- ac_cv_c_cross=yes
-else
- dnl Checks for programs.
- # For g77 we'll set CC to point at the built gcc, but this will get it into
- # the makefiles
- AC_PROG_CC
- ac_cv_c_cross=no
-fi
+GLIBCPP_TOPREL_CONFIGURE
+
+AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$target}
+AC_SUBST(target_alias)
+
+GLIBCPP_CONFIGURE(.)
+GLIBCPP_EXPORT_INSTALL_INFO
+
+dnl Checks for programs.
+
+AM_PROG_LIBTOOL
dnl These should be inherited in the recursive make, but ensure they are
dnl defined:
AC_SUBST(AR)
if test "$RANLIB"; then :
AC_SUBST(RANLIB)
-dnl Make sure that RANLIB_TEST is set also.
- if test -z "$RANLIB_TEST"; then
- RANLIB_TEST=true
- fi
else
- RANLIB_TEST=true
AC_PROG_RANLIB
fi
-AC_SUBST(RANLIB_TEST)
-
-dnl not needed for g77?
-dnl AC_PROG_MAKE_SET
-
-dnl Checks for libraries.
+AC_PROG_INSTALL
+AC_PROG_MAKE_SET
dnl Checks for header files.
# Sanity check for the cross-compilation case:
the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
then the target library, then build with \`LANGUAGES=f77'.])])
-AC_HEADER_STDC
-dnl We could do this if we didn't know we were using gcc
-dnl AC_MSG_CHECKING(for prototype-savvy compiler)
-dnl AC_CACHE_VAL(g77_cv_sys_proto,
-dnl [AC_TRY_LINK(,
-dnl dnl looks screwy because TRY_LINK expects a function body
-dnl [return 0;} int foo (int * bar) {],
-dnl g77_cv_sys_proto=yes,
-dnl [g77_cv_sys_proto=no
-dnl AC_DEFINE(KR_headers)])])
-dnl AC_MSG_RESULT($g77_cv_sys_proto)
-
-dnl for U77
-dnl AC_CHECK_HEADERS(unistd.h)
-
-AC_MSG_CHECKING(for posix)
-AC_CACHE_VAL(g77_cv_header_posix,
- AC_EGREP_CPP(yes,
- [#include <sys/types.h>
-#include <unistd.h>
-#ifdef _POSIX_VERSION
- yes
-#endif
-],
- g77_cv_header_posix=yes,
- g77_cv_header_posix=no))
-AC_MSG_RESULT($g77_cv_header_posix)
-
-# We can rely on the GNU library being posix-ish. I guess checking the
-# header isn't actually like checking the functions, though...
-AC_MSG_CHECKING(for GNU library)
-AC_CACHE_VAL(g77_cv_lib_gnu,
- AC_EGREP_CPP(yes,
- [#include <stdio.h>
-#ifdef __GNU_LIBRARY__
- yes
-#endif
-],
- g77_cv_lib_gnu=yes, g77_cv_lib_gnu=no))
-AC_MSG_RESULT($g77_cv_lib_gnu)
-
-# Apparently cygwin needs to be special-cased.
-AC_MSG_CHECKING([for cyg\`win'32])
-AC_CACHE_VAL(g77_cv_sys_cygwin32,
- AC_EGREP_CPP(yes,
- [#ifdef __CYGWIN32__
- yes
-#endif
-],
- g77_cv_sys_cygwin32=yes,
- g77_cv_sys_cygwin32=no))
-AC_MSG_RESULT($g77_cv_sys_cygwin32)
-
-# ditto for mingw32.
-AC_MSG_CHECKING([for mingw32])
-AC_CACHE_VAL(g77_cv_sys_mingw32,
- AC_EGREP_CPP(yes,
- [#ifdef __MINGW32__
- yes
-#endif
-],
- g77_cv_sys_mingw32=yes,
- g77_cv_sys_mingw32=no))
-AC_MSG_RESULT($g77_cv_sys_mingw32)
-
-
-AC_CHECK_HEADER(fcntl.h,
- test $g77_cv_header_posix = yes && AC_DEFINE(_POSIX_SOURCE),
- AC_DEFINE(NO_FCNTL) AC_DEFINE(OPEN_DECL))
-
-dnl Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_TYPE_SIZE_T
-
-dnl Checks for library functions.
-AC_TYPE_SIGNAL
-# we'll get atexit by default
-if test $ac_cv_header_stdc != yes; then
-AC_CHECK_FUNC(atexit,
- AC_DEFINE(onexit,atexit),dnl just in case
- [AC_DEFINE(NO_ONEXIT)
- AC_CHECK_FUNC(onexit,,
- [AC_CHECK_FUNC(on_exit,
- AC_DEFINE(onexit,on_exit),)])])
-else true
-fi
-
-# This should always succeed on unix.
-# Apparently positive result on cygwin loses re. NON_UNIX_STDIO
-# (as of cygwin b18). Likewise on mingw.
-AC_CHECK_FUNC(fstat)
-AC_MSG_CHECKING([need for NON_UNIX_STDIO])
-if test $g77_cv_sys_cygwin32 = yes \
- || test $g77_cv_sys_mingw32 = yes \
- || test $ac_cv_func_fstat = no; then
- AC_MSG_RESULT(yes)
- AC_DEFINE(NON_UNIX_STDIO)
-else
- AC_MSG_RESULT(no)
+dnl Checks for g77 integer types built into gcc's C front end.
+AC_MSG_CHECKING(for built-in g77 integer types)
+AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
+[AC_TRY_COMPILE(,
+ [__g77_integer g77i;
+__g77_uinteger g77ui;
+__g77_longint g77l;
+__g77_ulongint g77ul;],
+ libf2c_cv_has_g77_builtin_types=yes,
+ libf2c_cv_has_g77_builtin_types=no)])
+AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
+if test $libf2c_cv_has_g77_builtin_types = no; then
+ AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
+__g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
+a new enough version of gcc, or your target may not have type sizes which
+accommodate those types.])
fi
-# This is necessary for e.g. Linux:
-AC_MSG_CHECKING([for necessary members of struct FILE])
-AC_CACHE_VAL(g77_cv_struct_FILE,
-[AC_TRY_COMPILE([#include <stdio.h>],
- [FILE s; s._ptr; s._base; s._flag;],g77_cv_struct_FILE=yes,
- g77_cv_struct_FILE=no)])dnl
-AC_MSG_RESULT($g77_cv_struct_FILE)
-if test $g77_cv_struct_FILE = no; then
- AC_DEFINE(MISSING_FILE_ELEMS)
-fi
-
-dnl perhaps should check also for remainder
-dnl Unfortunately, the message implies we're just checking for -lm...
-AC_CHECK_LIB(m,drem,AC_DEFINE(IEEE_drem))
-
-dnl for U77:
-dnl AC_CHECK_FUNCS(symlink getcwd lstat)
-dnl test $ac_cv_func_symlink = yes && SYMLNK=symlnk_.o
-dnl test $ac_cv_func_lstat = yes && SYMLNK="$SYMLNK lstat_.o"
-dnl AC_SUBST(SYMLNK)
-
-# posix will guarantee the right behaviour for sprintf, else we can't be
-# sure; HEADER_STDC wouldn't be the right check in sunos4, for instance.
-# However, on my sunos4/gcc setup unistd.h leads us wrongly to believe
-# we're posix-conformant, so always do the test.
-AC_MSG_CHECKING(for ansi/posix sprintf result)
-dnl This loses if included as an argument to AC_CACHE_VAL because the
-dnl changequote doesn't take effect and the [] vanish.
-dnl fixme: use cached value
-AC_TRY_RUN(changequote(<<, >>)dnl
- <<#include <stdio.h>
- /* does sprintf return the number of chars transferred? */
- main () {char foo[2]; (sprintf(foo, "1") == 1) ? exit(0) : exit(1);}
->>changequote([, ]),
- g77_cv_sys_sprintf_ansi=yes,
- g77_cv_sys_sprintf_ansi=no,
- g77_cv_sys_sprintf_ansi=no)
-AC_CACHE_VAL(g77_cv_sys_sprintf_ansi,
- g77_cv_sys_sprintf_ansi=$g77_cv_sys_sprintf_ansi)
-dnl We get a misleading `(cached)' message...
-if test $ac_cv_c_cross = no; then
- AC_MSG_RESULT($g77_cv_sys_sprintf_ansi)
-else
- AC_MSG_RESULT([can't tell -- assuming no])
-fi
-# The cygwin patch takes steps to avoid defining USE_STRLEN here -- I don't
-# understand why.
-if test $g77_cv_sys_sprintf_ansi != yes; then
- AC_DEFINE(USE_STRLEN)
-fi
-
-# define NON_ANSI_RW_MODES on unix (can't hurt)
-AC_MSG_CHECKING(NON_ANSI_RW_MODES)
-AC_EGREP_CPP(yes,
-[#ifdef unix
- yes
-#endif
-#ifdef __unix
- yes
-#endif
-#ifdef __unix__
- yes
-#endif
-], is_unix=yes, is_unix=no)
-if test $g77_cv_sys_cygwin32 = yes || test $g77_cv_sys_mingw32 = yes; then
- AC_MSG_RESULT(no)
-else
- if test $is_unix = yes; then
- AC_DEFINE(NON_ANSI_RW_MODES)
- AC_MSG_RESULT(yes)
- else
- AC_MSG_RESULT(no)
- fi
-fi
-
-# We have to firkle with the info in hconfig.h to figure out suitable types
-# (via com.h). proj.h and com.h are in $srcdir/.., config.h which they need
-# is in ../.. and the config files are in $srcdir/../../config.
-AC_MSG_CHECKING(f2c integer type)
-late_ac_cpp=$ac_cpp
-ac_cpp="$late_ac_cpp -I$srcdir/../gcc/f -I../../gcc -I$srcdir/../gcc -I$srcdir/../gcc/config"
-AC_CACHE_VAL(g77_cv_sys_f2cinteger,
-AC_EGREP_CPP(F2C_INTEGER=long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
-F2C_INTEGER=long int
-#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
-F2C_INTEGER=int
-#else
-# error "Cannot find a suitable type for F2C_INTEGER"
-#endif
-],
- g77_cv_sys_f2cinteger="long int",)
-if test "$g77_cv_sys_f2cinteger" = ""; then
- AC_EGREP_CPP(F2C_INTEGER=int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
-F2C_INTEGER=long int
-#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
-F2C_INTEGER=int
-#else
-# error "Cannot find a suitable type for F2C_INTEGER"
-#endif
-],
- g77_cv_sys_f2cinteger=int,)
-fi
-if test "$g77_cv_sys_f2cinteger" = ""; then
- AC_MSG_RESULT("")
- AC_MSG_ERROR([Can't determine type for f2c integer; config.log may help.])
-fi
-)
-AC_MSG_RESULT($g77_cv_sys_f2cinteger)
-F2C_INTEGER=$g77_cv_sys_f2cinteger
-ac_cpp=$late_ac_cpp
-AC_SUBST(F2C_INTEGER)
-
-AC_MSG_CHECKING(f2c long int type)
-late_ac_cpp=$ac_cpp
-ac_cpp="$late_ac_cpp -I$srcdir/../gcc/f -I../../gcc -I$srcdir/../gcc -I$srcdir/../gcc/config"
-AC_CACHE_VAL(g77_cv_sys_f2clongint,
-AC_EGREP_CPP(F2C_LONGINT=long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
-F2C_LONGINT=long int
-#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
-F2C_LONGINT=long long int
-#else
-# error "Cannot find a suitable type for F2C_LONGINT"
-#endif
-],
- g77_cv_sys_f2clongint="long int",)
-if test "$g77_cv_sys_f2clongint" = ""; then
- AC_EGREP_CPP(F2C_LONGINT=long long int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
-F2C_LONGINT=long int
-#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
-F2C_LONGINT=long long int
-#else
-# error "Cannot find a suitable type for F2C_LONGINT"
-#endif
-],
- g77_cv_sys_f2clongint="long long int",)
-fi
-if test "$g77_cv_sys_f2clongint" = ""; then
- AC_MSG_RESULT("")
- AC_MSG_ERROR([Can't determine type for f2c long int; config.log may help.])
-fi
-)
-AC_MSG_RESULT($g77_cv_sys_f2clongint)
-F2C_LONGINT=$g77_cv_sys_f2clongint
-ac_cpp=$late_ac_cpp
-AC_SUBST(F2C_LONGINT)
-
-dnl maybe check for drem/remainder
-
-AC_SUBST(CROSS)
-
-
-# This EOF_CHAR is a misfeature on unix.
-AC_DEFINE(NO_EOF_CHAR_CHECK)
-
-AC_DEFINE(Skip_f2c_Undefs)
-
-dnl Craig had these in f2c.h, but they're only relevant for building libf2c
-dnl anyway.
-
-dnl For GNU Fortran (g77), we always enable the following behaviors for
-dnl libf2c, to make things easy on the programmer. The alternate
-dnl behaviors have their uses, and g77 might provide them as compiler,
-dnl rather than library, options, so only a single copy of a shared libf2c
-dnl need be built for a system.
-
-dnl This makes unformatted I/O more consistent in relation to other
-dnl systems. It is not required by the F77 standard.
-
-AC_DEFINE(Pad_UDread)
-
-dnl This makes ERR= and IOSTAT= returns work properly in disk-full
-dnl situations, making things work more as expected. It slows things
-dnl down, so g77 will probably someday choose the original implementation
-dnl on a case-by-case basis when it can be shown to not be necessary
-dnl (e.g. no ERR= or IOSTAT=) or when it is given the appropriate
-dnl compile-time option or, perhaps, source-code directive.
-
-dnl AC_DEFINE(ALWAYS_FLUSH)
-
-dnl Most Fortran implementations do this, so to make it easier
-dnl to compare the output of g77-compiled programs to those compiled
-dnl by most other compilers, tell libf2c to put leading zeros in
-dnl appropriate places on output
-
-AC_DEFINE(WANT_LEAD_0)
-
# avoid confusion in case the `makefile's from the f2c distribution have
# got put here
test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
-AC_CONFIG_SUBDIRS(libU77)
-AC_OUTPUT(Makefile f2c.h libI77/Makefile libF77/Makefile)
+AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
+# Do Makefile first since g2c.h depends on it and shouldn't get an
+# earlier timestamp. Of course, it does when the multilib gunk below
+# edits Makefile, sigh; see additional touch below.
+AC_OUTPUT(Makefile g2c.h:g2c.hin,
+ [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
+if test -n "$CONFIG_FILES"; then
+ LD="${ORIGINAL_LD_FOR_MULTILIBS}"
+ if test -n "${with_target_subdir}"; then
+ # FIXME: We shouldn't need to set ac_file
+ ac_file=Makefile
+ . ${toplevel_srcdir}/config-ml.in
+ touch g2c.h # to keep it more recent than Makefile
+ fi
+fi],
+srcdir=${srcdir}
+host=${host}
+target=${target}
+with_target_subdir=${with_target_subdir}
+with_multisubdir=${with_multisubdir}
+ac_configure_args="--enable-multilib ${ac_configure_args}"
+toplevel_srcdir=${toplevel_srcdir}
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
+)
-dnl We might have configuration options to:
-dnl * allow non-standard string concatenation (use libF77 s_catow.o,
-dnl not s_cat.o)
-dnl * change unit preconnexion in libI77/err.c (f_init.c)
-dnl * -DALWAYS_FLUSH in libI77
-dnl * -DOMIT_BLANK_CC in libI77
dnl Local Variables:
dnl comment-start: "dnl "
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